Interaction between pod age and position on damage to cowpea Vigna unguiculata by hemipteran pod-sucking bugs
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- Authors:
- KOONA, P
OSISANYA, E. O
JACKAI, L. E. N
TAMO, M
TONYE, J
NGEVE, J. M - Author Affiliations:
- International Institute of Tropical Agriculture, PMB 5320, Ibadan, Nigeria
Department of Crop Protection and Environmental Biology, University of Ibadan, Ibadan, Nigeria
Institute of Agricultural Research for Development, BP 2123, Yaoundé, Cameroon - Source:
- Bulletin of entomological research. 91(6):453-459
- Publication Date:
- 2001-01-01
- Language:
- English
- Abstract:
- Laboratory and screenhouse studies were carried out to assess the relationship between pod age and pod position of cowpea and damage by different pod bug species. The coreids Clavigralla tomentosicollis Stäl and Riptortus dentipes Fabricius caused significant damage to young pods of cultivated genotypes, in contrast to the coreid Anoplocnemis curvipes Fabricius and the pentatomid Aspavia armigera Fabricius which exhibited minor feeding activity. Percent seed damage declined with pod age, the critical stage for pod bug infestation being when pods were about eight days old. Clavigralla tomentosicollis and R. dentipes caused significantly higher damage to pods located within the leaf canopy, thus behaving differently from Anoplocnemis curvipes which showed a distinct preference for pods growing above the leaf canopy. The feeding activity of Aspavia armigera was not affected by the position of pods on the plant. Overall, the study suggests that cowpea genotypes with a short flowering period and pods held above the leaf canopy offer the most promise in the management of pod-sucking pests.
- Notes:
- Phytopathology. Agricultural zoology. Crops and forests protection
- Subjects:
- Agronomy, agriculture, phytopathology
Agronomie, agriculture, phytopathologie
Entomology
Entomologie
Sciences biologiques et medicales
Biological and medical sciences
Sciences biologiques fondamentales et appliquees. Psychologie
Fundamental and applied biological sciences. Psychology
Phytopathologie. Zoologie agricole. Protection des cultures et des forets
Phytopathology. Animal pests. Plant and forest protection
Protozoaires. Invertébrés
Protozoa. Invertebrates
Signalements, symptômes, dégâts, importance économique, surveillance des populations
Records, symptoms, damages, economic importance, population surveys
Angiospermae
Arthropoda
Dicotyledones
Heteroptera
Insecta
Invertebrata
Leguminosae
Relation animal végétal
Animal plant relation
Relación animal vegetal
Spermatophyta
Age
Edad
Comparaison interspécifique
Interspecific comparison
Comparación interespecífica
Coreidae
Dégât
Damage
Estrago
Déprédateur
Pest
Plaga
Gousse
Pod
Vaina
Légumineuse grain
Grain legume
Leguminosa grano
Pentatomidae
Position
Posición
Vigna unguiculata - Format:
- Academic Journal
- Database:
- PASCAL Archive
- Journal:
- Bulletin of entomological research
- Volume:
- 91
- Issue:
- 6
- Page Start:
- 453
- Page Count:
- 7
- ISSN:
- 00074853
- Publisher:
- Wallingford: Cambridge University Press, 2001.
- Document Type:
- Article
- Physical Description:
- print, 25 ref
